Cisco Intersight module_utils and intersight_facts module (#51309)

* Cisco Intersight module_utils and intersight_facts module

* Add RETURN information and fix pylint, import, and pep8 issues.

* Review updates for specifying type of params/returns and not polluting ansible_facts.

* BSD one line license, validate_certs used, urls.fetch_urls replaces requests

lib/ansible/plugins/doc_fragments/intersight.py

@@ -0,0 +1,45 @@
+# -*- coding: utf-8 -*-
+
+# This code is part of Ansible, but is an independent component.
+# This particular file snippet, and this file snippet only, is BSD licensed.
+# Modules you write using this snippet, which is embedded dynamically by Ansible
+# still belong to the author of the module, and may assign their own license
+# to the complete work.
+#
+# (c) 2016 Red Hat Inc.
+# (c) 2017 Cisco Systems Inc.
+#
+# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
+#
+
+
+class ModuleDocFragment(object):
+    # Cisco Intersight doc fragment
+    DOCUMENTATION = '''
+options:
+  api_private_key:
+    description:
+    - 'Filename (absolute path) of a PEM formatted file that contains your private key to be used for Intersight API authentication.'
+    type: path
+    required: yes
+  api_uri:
+    description:
+    - URI used to access the Intersight API.
+    type: str
+    default: https://intersight.com/api/v1
+  api_key_id:
+    description:
+    - Public API Key ID associated with the private key.
+    type: str
+    required: yes
+  validate_certs:
+    description:
+    - Boolean control for verifying the api_uri TLS certificate
+    type: bool
+    default: yes
+  use_proxy:
+    description:
+    - If C(no), it will not use a proxy, even if one is defined in an environment variable on the target hosts.
+    type: bool
+    default: yes
+'''